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      Question

      src="https://www.ixambee.com/questionimage/Chapter/1650341569-S49.png" alt="" />
      A a Correct Answer Incorrect Answer
      B b Correct Answer Incorrect Answer
      C c Correct Answer Incorrect Answer
      D d Correct Answer Incorrect Answer

      Solution

      Active acidity  may be defined as the acidity  develops due to  hydrogen (H+) and aluminium (Al)3+ ions concentration of the soil solution.

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